Problem Statement

Given a signed 32-bit integer x, return the reverse of x. If the reversed value of x goes beyond the signed 32-bit integer range [-2³¹, 2³¹ - 1], then return 0.

A reverse of x should not contain leading zeros.

Examples

• Example 1:

  • Input: x = 123
  • Expected Output: 321
  • Justification: Reversing the digits of 123 results in 321, which is within the 32-bit signed integer range.

• Example 2:

  • Input: x = -456432
  • Expected Output: -234654
  • Justification: Reversing the digits of -456432 results in -234654, maintaining the negative sign and staying within the 32-bit signed integer range.

• Example 3:

  • Input: x = 1200
  • Expected Output: 21
  • Justification: Reversing the digits of 1200 results in 0021, but leading zeros are dropped, resulting in 21.

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